Type-writing machine.



H. S. MUCRMAGK,

TYPE WRITING MACHINE APPLICATION FILED MAY 28,19%.

H. S. MGGORMACK.

TYPE WRITING MACHINE.

APPLICATION FILED MAY aA 1008.

Patented Mar. 11, 1913.

T,\ 2 SHEETS-SHEET 2.

it... .l-if

rra sfrarss PATENT onirica.

',HARRY S. MCCORMACK, OF NEWTl ROCHELLE, NEW YORK, ASSIGNOR, /BY MESNEVASSIGN- MENTS, TO UNDERWOOD TYPEWRITER GOIIVIIEANY,l F NEW YORK, N. Y., :A CORPO- RATION' OF DELAWARE.

To all whmnz't may compra.'

Be itknown that'I, I-lAnnY S. MCCORMACK,

l a citizen of the UnitedStates, residing in leading edge of the sheet, said stop movable New Rochelle, in the county of Westchester .and State of New York, have' invented certion of the platen and over the printing point, upon which the sheet can readily be adjusted, a stop being provided to gage the to permit the sheet to pass, and a directrix being also provided to guide the sheet up to the gage.

The general object of the present inven- I tion is to improve and simplify the construcpurtenances.

tion and operation of the tablet and its ap- One of the features of' the Present invention relates'to the sheet-gaging means. In place of a single 4gage extending nearly the entire length of the platen, I have devised a series of small gages or vgagepins, which I adjust independently of one another toI any `desired points along the platen.

In place of a single directrix extending nearly the entire length of the platen I provide` a series of directrices also adjust-able v gage-pins themselves.

independently. of each other along the platen, and preferably mounted upon the The latter are shown sphned upon a rock-shaft -which extends a ong `the platen and performs the functions ,of rocking the gages into and out of sheetarresting positlons.

Said directrices are preferably in the form of yielding fingers to press lightly against the tablet or the sheet thereon, to hold the'sheet temporarily after,

its adjustment and-until the usual pressure rolls arebrought into operatiorpto advance the sheet.

In said application No. 402,583 the pressure-roll release key is conne ted to a stop or gage' which is mounted ujon the tablet, So that the gage is thrown into working Specication ofLetters Patent. Application led May 28. 1908. Serial No. 435,404.

TYPE-WRITING MACHINE.

Patented Mar.1`1,1913.

position when the rolls are released from the platen; and upon 'lifting the key to' restore the rolls, the gage is' automatically 'moved out of working osition.

One of the objects o the present invenlion is topreserve' the automatic gage-releasing feature withoutv vincurring .the liability of the sheet becoming disarranged during the return stroke of the pressure-roll key, owing to the simultaneous movements of the gage and rolls. To this end, I disconnect the key from the gage and Vprovide a separate finger-piece to move thegage to working position, and' I also provide means whereby upon rotating the platen, the age.

is automatically swung away from the ta let to permit the sheetto advance as the platen turns. This automatic release of the` age is secured by means of a tumbler whic at the gage-setting operation is caused to fall into a notch in a toot-hed wheel, which is secured to the platen. Said wheel may be also used for line-spacing; but in the present instance a separate wheel is used for linespacing, and the wheels have similarenumt bers of teeth, so that when the platen is brought to rest by the line-spacing mechanism there is always a notch in position to receive the tumbler. Upon turning the platen, the tumbler is thrown out and causes the gage to release the sheet. j

The tablet and its appurtenances are mounted for movement up and away` from j the platen to permit free access to the latter, which is a great convenience for many pur-Y poses, and especially where a tally vstrip mechanism` is employed at one end of the platen frame. since the movement ofthe tablet upwardly Vand forwardly away 'from the platen 'gives the operator an o portunity to manipulate the strip convenientto pass. it around the platemto wind the spools, etc.

The hinged tablet frame .is preferably dia-y .Connectible as a whole from the platen frame, to permit the machine to be used for ordinary urposes when desired. The rtablet is adjustable up and down or away from and toward the prmtin lineon the platen., and provision is made or causing automatic release of the sheet age at anypositionto which it may be a justed `with the tablet. Other features and advantages willY hereluefter appear.

roo

In the accompanying drawings, Figure 1 is a plan of the platen frame and a portion of the carriage of an Underwood typewriting machine showing my improvements applied lthereto, the sheet-gage being shown out of saine. Fig. 6 is a perspective View to show the adjustable combined gage pin and sheetdirectrix. Fig-7 is a sectional end elevation of-the mechanism showing 'the sheet-gage in Working position;

Types 1 strike on the vfront side ofa revoluble platen 2 mounted by means of. an axle 3 in theends 4, @of a platen frame, which Aalso comprisesfa paper shelf 6 in rear 1of the platen. f Upon the under side of the platen run pressure rolls 7, 8, which are released by means of a key 9 in the usual manner, said key connected by means of a link 10 to a crank 11 on the rock shaft 12, having cams orf/flats 13- tol release arms- 14 which? control the pressure rolls. Mounted on edge above the platen and about directly over the printing point is ra tablet 15, upon which to adjust the sheetwhen the pressuref rolls 7, 8 are released by the key 9. lThe sheet is set up to a series of two or more stops or gage pins 16, which are'mounted upon a rock-shaft 17, the ,latter journaled at itseiids in ears 18 secured upon the front face of the tablet 15, andthe rock-shaft having a handle 19,

whereby Y. it may be rocked to throw the gages backwardlyover a backturned ledge 20 formed on the upper edge of the tablet 15. A yielding detent 21 engages notches 22 ina collar 23 provided on said shaft, to hold thesame leither in working position, as at Fig. 7, or in the-Fig. 5 position with the gage-pins 1 6 out of use.

Betore a-sheet of paper 24 is introduced,

the rolls;7, 8 are casto by-means of the key9,and the paper is .inserted around the platenand thrust up in front thereof; a series of directrices 25 being provided to guide the leading edge of the sheet up to the `gage-pins 16; and the bottom edge of the tablet 15 also preferably having a rearward flare 26 for aiding to guide the sheet. The handle 19 being pressed back, the gagepins `are thrown into use, and the operator adjusts the top edge of the sheet to said pins and the side edge to a gage 27. The directrices 25 are pressed li htly by springs 26 against the sheet, to hol the latter teinporarilywhile the operator lifts the key 9 to restore the pressure rolls 7 8, that are to coperate with the platen to advance the sheet. After lifting the key 9, the operator i sheet 24, this being accomplished by means of a tumbler 34 connected` to the gage-carrying rock-shaft 17 and adapted to fall into a notch of a too-thed wheel 35 fixed upon 4the platen, and throwing said tumblerv 34 up from the Fig. 7 to the F igg position, thereby turning the rock-shaft 17 and rocking the gages 16 forwardly; The tumbler is 'the platen axle 3, the wheel 35 turning with y formed upon the rear end of a lever 36,

which is pivoted betweenends at37 upon one of a pairy of side plates 38 to which th'e.

tablet 15 is fastened. When tlietumbler 34 rises the lever pulls down a link .39, the up- ,per end of which is pivoted tc a crank 40 provided upon the rock-shaft 17, whereby the latter is turned to the Fig. ,5 position. It will also be understood that when the handle 19 is thrown back to set the gagei pins, the link 39 lifts the lever 36 to drop the v tumbler 34 intoL a notch of the wheel 35,

VVFig. 7. Said wheel has the same number of notches as the line-space wheel 33, and the latter is of course provided with the usual detent 41, so that there is always a notch beneath the tumbler 34 to receive the same. It is not essential that the wheel 2135 be separate -from thev wheel 33, as they may be regarded as parts of wheel. Whenever desired, the handle 19 may be used'tor throwing the gage pins 1G forwardly; and this may conveniently be done when the'key 9 is restored, and by the saine hand ot' ibo operato-r, said handle 19 being arranged in proximity to said key` 9.

Reterrinfr a ain to the directrices 25, it

.will be seen that theyai'e pivoted at 42 tov the lower ends of brackets 43 upon which the gage-pins 16 are formed, saidbrackets adinstable independently of each other along the rock-shaft 17 andhaving spring detents 44 to engage a groove 45 extending along Vthe .rock-shaft, to cause the brackets and already mentioned, the pivot 42 of the directriX permitting the latter to yield to acconr.

' secured in its new position, the crank 110 is I modate the paper. The aforesaid side plates 38 are provided with vertical slots 48 in which play screws 49, whereby the tablet is secured upon said side plates, ears extending back from the ends of the tablet to receive the Shanks of said screws. lhe screws may be loosened .to permit adjustment of the tablet bodily down' and up or toward and away from the print-ing line on the platen, to accommodate different depths of eadings upon different styles'of bills. l

When the tablet is being adjusted up or down, the operator l'oosens a screw 51 which securesto the 4rock-shaft 17 the hub 52 of the crank 4 0; and after the tablet has been adjusted around" the'rock-'shaft 17 to compensatefor the change in position of the tablet, and then the screwlis tightened, so

that whenthe rock-shaft is in the Fig. 3 position the tumbler 34:l may stand in the Fig. 5 position. Itwill be observed that the side.. plates 38 are'hinged at their' forward ends by means of thumb screws 53upon a pair Iof brackets 54;, secured by screws 55 sol upon, the ends of the platen frame. By means 'of handles having finger-pieces 56a which Aextend rearwardly from 'the side plates 38, the entire frame, comprising said side plates and the :tablet 15,' may be swung upwardly land forwardly away from the platen, to give freedom of access to the latter,su ch swinging movement bein indicated by dotted lines' at Fig. 5. The ta let frame is normally lield down by yielding latches 57, which catch over the tops of the arms -56 and may be pressed aside' to release said arms. n tablet lframe is turned to normalposit-ion,

the'tumbler 34 resumes: its properI position I vrelatively to the wheel 35, the automatic release of the gage-pin 16 being thus secured byfmeans whlch de not require to be cast et or attended to when it is desired to raise or swing the tablet frame upwardly'and forwardly from the platen. The thumb screws 53 may be talenl out andthe tablet frame may be move entirely-'from the machine v'vheneverl desired, to permit the latter to be used for vordinary letter-writing or other purposes.y The side gage 27 may have a c la's'p 57.l fitted over' a flange 58 projecting up 4from the ledge 20; and may be yieldin'gly held in position by spring-fingers 59, 60 secured by a screw 61 upon the part 57.

,Variations may be resorted to within the scope'of-the invention, and portions lof the' improvements maybe used without others. Having thus' described my invention, I claim: 1. In a typewriting machine, the combination with a platen and a platen trame, of a stop-gage Vfor the leading edge of the sheet Ity will be .understood that when thel working position, means to advance the platen together with the paper thereon, and means dependent upon the rotation of the platen itself to cause the gage to move out of working position.

4. 'In a typewriting machine` the combination with a platen and a ratchet connected thereto, of a stop-gagefor the leading edge of the sheet, and a tumbler connected to the stop-gage to be dropped into a notch ot the ratchet at the movement of the stop-gage to working position, and then to be operated by Said ratchet to release the stop-gage.

5. In a typewriting machine, the combination with a platen and a ratchet connected thereto, of a gage for the leadingv edge of the sheet, a rock-shaft carrying said gage, and a lever connected to said rock-shaft and having a tumbler to be thrown into engagement. with the ratchet when the gage is turned to working position; the tumbler being liftable bythe ratchet teeth to throw thegage out of working position.`

6. Ina typewriting machine, the combi- .nationwith a revoluble'platen having a notched lvlflflecl, of a tablet above the platen upon which-to adjust the sheets, a stop movable'to said tablet to gage the leading edges of the sheets,and a tumblerA connected to the stop to be moved into a notch of said wheel when the gage is moved to working position, and to be caused by said wheel to restore the gage to inoperative position.

7. In a typewriting machine, the combi-y nation with a re'voluble platen having a notched wheel, ofa tablet above the .platen upon which to adjust the sheets, a stop movablc to said tablet to gage the leading edges of the sheets, and a tumbler connected to the stop to be move-d into a notch of said wheel when the gage'is moved to working position, and to be caused by said wheel to restore the gage to inoperative position", the tablet and stop being together adjustable toward vand away from' the printing point. and the connection between the stop and the tumbler including a art adjustable to compensatefor such adjustment of the stop.

8. In a typewrit-ing machine, the combination with va revoluble platen having a notched or toothed wheel, of a tablet above ltlie'platen upon which to adjust the she-ets,A

Said tablet adjustable toward and away from the )rintinff oint a sto) movable to,

gage the leading edges ot the sheets, said stop mounted on a rook shaft which is shittable together with said tablet, an arin upon Said rook shaft, and a lever connected to said arm and hivinga tumbler to engage a notch or tootlrof said wheel at the movement of the stop to working position, and to be caused by said notch or tooth to roel( said shaft to release the stop, adjustable means being provided tovary the/connection between the rock-shaft and the lever.

9. In a typewriting machine, the combi nat-ion with a revoluble lplaten having a notohedor toothed wheel, et a tablet above the platen upon which to adjust .the sheets,

l said tabletl adjustable toward and'away from the printing point, a stop movable to gage the leading edges of the sheets, said stop mounted on a rock shaft which is shittable together with said tablet', an arm upon said rock shaft, and a lever connected to said arm and having a tumbler to engage a notch or tooth ofsaid wheel at the movement of the stop to working position, and tow/bei eaus'edby said notch or .tooth to rook said shaft to release the stop, said arm being adjustable about said rook shaft to eompen` sate for the different positions to which the rock. shaft is adjustable relatively'to the printing point. z

10. In a. typewriting machine, the oombination with a revoluble platen having a toothed wheel, of a tablet abovedhe platen upon which to adjust the sheets, a platen frame, means supporting the tabletI for ad- 'ustinent alone' said ilaten frame toward D and away from the priutingpoint, a roel; shatt to be adjusted with the tablet, a gage on said roelar shaft for the leading edges ot the sheets, an arm mounted upon said rock shatt and adjustable to dilt'erent positions around the same, a link (zonnet-ting said arni to a lever, and a tumbler upon said lever lo be moved against a tooth ot' said wheel at the gage-setting operation, and to be caused by the wheel' to release the gage.

ll. .lin a typewriting machine, the eoinbination with a revoluble platen having a toothed -wheel, ot a tablet above the platen upon whirli to adjust the sheets, a platen traine, ineaus support-ing the tablet tor adjustment along said platen 'ti-ame toward and away trom the print ing point. a roehY shaft lo be. adjusted' with the tablet, a gage on said rock shaft tor the leading edges of the sheets, an arni mounted upon lsaid rook shaft and adjustable lo dilt'erent positions around the same, a linlc connecting said arm to a lever, and a tunibler upon said lever to be moved against. a tool-h ol` said wheel at the `lageselling operation, and to be caused bv the wheel to release the gage, a yielding detent being provided upon said tablet to hold said frame, means supporting the tablet-.for adjustment along said platen frame' toward 'f' and away from the printing point, a rock' shaft journaled upon ears eo'nn'eeted'to said tablet to be adjusted therewith, a tingen' piece upon said rock-shaft, 'a gage on said I .rock shaftv for the leading edges "lof kthe sheets, adjustable means connecting said rock shaft to a tumbler to bemoved against a tooth of said Wheel at the gage-setting i' operation, and to be caused by the wheel .t0

release the gage. i

13. In a typewriting machine, the combination with a revoluble platen, a platenframe, and a tablet above theplaten upon which to adjust the sheets, of a rook-shaft extending along the tablet, and a Series of paper-gages mounted upon said rock-shaft to turn therewith and independently adjustable therealong.

14. In a typewriting machine, the combination with a revoluble platen, a platenf trame, and a tablet above the platen upon which to adjust the sheets', of a rook-shaft extending along the tablet, and a series of paper-gages mounted upon said rock-shaft to turn therewith and independently adf justable therealong, each of said paper-gages A having a releasable spring to engage a longitudinal groove termed in the rock shaft. A.

ice

15. ln a typewriting machine, the combi-" l nation with a revoluble platen, a platen- Jframe, and a tablet above the platenupon which to adjust the sheets, of wreck-shaft extending along the tablet, and a Series of i paper-gages mounted upon said roekshaft to turn therewith and independently adv'ustable therealono eaeh ravie also having a D s D vielding finger to press lightly against the tablet or the paperthereon, to hold the sheet temporarily after it-has been adjusted to the gage.

1G. 1n typewriting machine, the oombi-y nat-ion with a revoluble platen, a platenframe, and a tablet above the platen upon which to adjust the sheets, of a roek-shatt` extending along the tablet, a series ot paper gages mounted upon said rock-shaft to turn therewith and indepeinlently adjustable therealong, eaeh of said paper-gages rhavin-g'l a releasable spring to engage a longitudinal groove formed in the rook shaft, anda finger-piece upon said vrook shaft..

17. In a typewriting machine, the eombfnation with a revoluble platen, a platen-KA away from the tablet.

,18. In a typewritin machine, the combination with a revolu le platen, a platenframe, and a tablet above the platen upon which to adjust the sheets, of a rock-shaft extending along the tablet, a paper-gage mounted upon said rock-shaft, the latter mounted in ears projecting from said tablet, andthe tablet having means whereby it is supported for up and down adjustment upon brackets supported on the ends of the platen frame.,

19. In a typewritin machine, 4the combination with a revolu le platen, a platenframe, and a tablet above the platen upon which to adjust the sheets, of a rock-shaft extending along the tablet, a paper-gage mounted upon said rock-shaft, the latter mounted in ears projecting from said tablet,

and the, tablet having means whereby it is supported for up and down adjustment upon brackets supported on'the ends ofthe platen frame; said brackets being hinged to the platen frame forward of the platen to permit the' tablet and its appurtenances to be swunl upwardly and forwardly away from thepv aten.

20. In a' typewritin machine, t-he combination with a revolu le platen, a platenframe, and a tablet above the platen upon which to adjust thesheets, of a rock-shaft extending along the tablet, a paper-gage mounted upon said rock-shaft, the latter mounted in ears projecting :from said tablet,;

and the ltablet' having means whereby it is supported for up and down adjustment upon Ibrackets supported on the ends of the platen frame; said brackets `being' hinged to the platen frame forward of the platen to permit theftablet and its appurtenances to be 'swung upwardly and forwardlyA away from 'the platen, and catches for holding said brackets in their normal positions.

21.= In a typewritin machine, the combination with a revolu le platen, a platenframe, and a tablet above the platen upon which to adjust the sheets, of a rock-shaft extending along the tablet, a paper-gage mounted upon 'said rock-shaft, the latter mounted in ears projecting from said tablet,

and'the tablet having means whereby it -is supported for up and down adjustment upon brackets supported on the ends of the platen frame; sai brackets being hinged to the platen frame forward of the platen to permit the tablet and its appurtenances to be swung upwardly and forwardl away from the platen, and catches for olding sald `brackets in their normal positions, each bracket having a rearwardly extending ingeriece. r

22. n a typewriting machine, the comb1 to car nation with a revoluble platen, a platen frame, and a' tablet above the platen upon which to adjust the sheets, o? a rock shaft` it has been adjusted to the ga e.

23. In a typewriting mac ine, the com'- bination with a revvoluble platen, a platen frame, and a tablet above the platen upon which to adjust the sheets, of a rock shaft extending along the tablet and apaperfgage mounted upon said rock shaft to turn therewith, said gage havin 'a yielding finger to press lightly against t e tablet or the pa er thereon, to hold the sheet temporarily a ter it has been adjusted to the gage, and means connected to the platen to rock said shaft the gage away from the tablet.

24. n a typewriting machine, the combination with a revoluble platen, a platen.

frame, and a tablet above the platen upon which to adjust the sheets, bracketssupporting said tablet and hinged to the platen frame, to permit the tablet to be swung ulpwardly and forwardly away from t platenand catches for holding said brack- ,ets in their normal positions.

26. In a typewriting machine, the combination With a lrevoluble platen, a platen frame, and a tablet above the platen upon 'which 'to adjust the sheets, brackets suporting said tablet and hinged to the platen rame, to permit the tablet tov be swung upwardly and forwardly away from the p aten, and catches for holding said brackets in their normal positions, each bracket having a linger-piece. i

27. In a typewriting bination with a revolu l the sheets, of a paper gage movable to and from said tablet and having a yielding finger to press lightly a ainst the tablet or.

the paper thereon to ho d the sheet tempo` rarily afterit has beenadjusted to the gage.

machine, the cmi e platen and a tab-r let above the platen upon which to adjust` 28. In a ltypewritin machine, the com I laten frame, of a pair, of brackets or arms liinged to the platen frame, and a tablet normally lying on ed e above the platen, upon which to adjust t e sheets; said tablet mounted at its ends upon said hinged arms to be swung away from the platen.

y29. In a typewriting machine, the com- .bination with a revo uble platen and a bination with a revoluble platen and a platen frame, of a pair of brackets or arms hinged to the platen trame, a tablet normally lying on edge above the platen, upon which to adjust the sheets; said tabletmounted at itscnds upon said hinged arms to be swung Aaway from the platen, and releasable means to hold the arms in normal positions.

30. ln a typewriting machine, the combination with a .revoluble Vplaten and a platen frame, of a pair of brackets or arms hinged to the platen frame, and a tablet ynormally lying on edge above the platen, `upon which to adjust the sheets; said tablet mounted at its ends upon said hinged arms to be swung away from the platen; said arms mounted one at each: end of the platen frame and hinged at their forward ends.

3l. In a typewriting machine, the combination with a revoluble platen and a platen frame, of a pair of brackets or arms hinged to the platen fraaie, and a tablet normally lying on edge above the platen, upon. which'to adjust the sheets.; lsaid tablet mounted at its ends upon said hinged arms to` be swung away from the platen; said arms mounted one avt each end of the platen .frame and: hinged at their forward en ds upon ears extending forwardly from the ends of the platen frame.

32. In'a typewriting machine, the combination with a revoluble platen and a platen frame, of a pair of brackets orV arms hinged to .the platen trame, a tablet normally lying on edge above the platen, upon,

which to adjust the sheets; said tablet mounted at its ends upon' said hinged arms` to 4loe swung away from the platen, and means upon said tablet to gage the vleading edges of the sheets.

33. In a typewriting machine, the combination with'a revoluble platen and a tablet above the platen upon 'which to adjust the sheets, of a paper gage upon said tablet for the leading edges of the sheets,`means to detain the paper gage yieldingly in working position, and an automatic Adevice connectcd to the `paper-controlling devices of the machine to release the gage; said tablet and its appurtenances'being mounted upon the platen frame for movement upwardly away from vthe platenl to give freedom of access to the latter'.

In a typewriting machine, the com-` -bination with a revoluple plat'euhaving a notched wheel and,A a platen frame, of a tablet above the platen upon which to adjust the sheets, a gage movable to said' tablet to arrest the leading edges of the sheets, and a tumbler connected to the gage to be moved into a'notch of saidwheel when the gage is moved to working'position, and to be caused by, said Wheel to restorethe gage to inoperative position; said tablet, gage and tumbler being all mounted upon a'support which is hinged upon said platen frame to permit them to be swung up away from the platen to gire freedom` of access to the latter. In a typewriting machine, the combination with a revoluble platen, anda tablet above the platen upon which to radjust `the' sheets, of a paper gage movable Vto and trom said tablet,.a`nd a yieldingdircctria for lthe upwardly advancing leading edge -o-the sheet, a spring being providedfto cause said directrix topress lightly against thejtvablet or the .paper thereon.

36. In a-@typewriting machine,the combination with a revoluble platen,a,platen frame, and a tablet above the platen upon which to adjust the sheets, of .a rockshaft extending along the tablet., ,a series of papergages mounted upon 'said rock-shaft to turn therewith and independently .adjustable therealong,A and means'for directing the 'up wardly advancing leading edge of. the sheet j toward said gages, .said directingy means conn-)rising awseriesof. directrices, oney upon each gaga` l 37. In a typewriting machine, the 'coinbination with Va revoluble platen, a platen `frame, and tablet above the platen upon which to adjust the sheets,.of arock-shaft extending along the tablet, a seriesof'paper- '95 gages mounted upon said rock-shaft to turn therewith and independently adjustable therealong, and means for directing theup-.` l

wardly advancingileading ,edge the sheet toward said gages, said directing means comprising a series ofy directricesgone upon each gage, and each' of said directricesmounted to press lightly 'and yieldingly" against the tablet orthe :sheet thereon. 38. ln a typewritin machine, the ,combi- Ination withda revolub e platen and a tablet 'above theplaten .upon .which tov adjust the j ing means, vsaid directrices adjustable independently of each other along the platen.

40. In atypewritin machine, the combi" nation. with a revolub e platen. and -atablet mounted over the platen upon which toadjust the sheet, gaging means -for the leading f edge of the, sheet, anda/series of directrices toguide` said leadingedge'to 'the gaging means., said, directrices'y adjustable Vindepend- ,ently pclfeaehr other along the platen; and

'nation with a revoluble each having a yielding construction to bear lightly upon the tablet or upon the sla-el. thereon. f 4l. In a typewriting machine, the combilaten, releasable pressure rolls therefor, anda tablet' mounted over the platen upon which the sheet may be adjusted, and provided with gaging means for theleading edge of the sheet, of a series of yielding lingers to bear lightly upon the tablet or upon the pa er thereon, to hold the same temporarily ailier the adjustment of the sheet and until the pressurerolls are brought into 'operation to advance the same.

4.2. In a typewriting machine, the comblnation with a revoluble platen and a platen frame, of a frame detachably mounted upon the platen frame and having a tablet erected over the platen above the printing point, and extending along the platen to serve as a rest upon which to adjust the leading edge of the sheet. j

43. In a typewritin machine, the combinatio-n with a re-volub e platen and a platen frame, of aframe detachably mounted upon i 'the platen frame and having a tablet erected over the platen above the printing point, and a stop to' gage the leading edge of the sheet. i y 1 '44. In a typewritin machine, the combi` nationl withfa revolub e platen and a platen frame, of a framedetachably mounted upon the platen frame and having. a tablet erected over the platen above the printing point, and a stop to gage the leading edge of the sheet; said tablet'and stop being adjustable upon said detachable frame 'away from and toward the printing line.v

45. In a typewritin machine, the combination with a revolub e platen and a' platen frame, of a frame detachably mounted upon l the platen frame and having a tablet erected over the platen above the rin'ting point, a stop to gage the leading e ge of the sheet; means to hold the stop in working position,

. l and means operable by a part of the paper? advancing mechanisml-tp release the stop.

A46. In a typewritin machine, the combi,l blye platen and a platen 4the platen frame and having-a tablet erected over the platen above the printing point, and a stop to gage the leading edge ofthe sheet, the platen having a notched wheel and the detachable frame having a tumbler to drop into the notch of the Wheel, to enable the rotation thereof. to throw the stop to release. the sheet.

47. In a typewriting machine, the eombination with a revoluble platen and a vplaten frame, ofa frame mounted upon the platen frame and having a tablet erected over the` platen above the rintin point, a -stop to ga e the leading e ge-of t e sheet, means to vanein mechanism to release the stop.

48. n a typewriting machine, the combination with a revolution platen and a platen frame, of a frame mounted upon the platen frame and having a tablet erected over the platen above the -printing point, and a stop to gage the leading ed e of the sheet; the

laten havingma notc ied' wheel and the rame having a tumbler to drop into the notch of the wheel, to enable the rotation 49. In a typewritin machine, the-combination with a revolub e platen and a laten frame, of a frame detachably mounte .upon the platen frame and having a tablet yerected over the platen above the rinting point, a sto to frage the leading edge of the sheet, sait tab et and stop bemg adjustable up'n said detachable 4frame away from and toward the printing line, means to hold the stop in Workin position, means-operable by. a part of t e paper-advancing mechamit adjustment ,of the stogreleaslng means to compensate for the" a tablet.

frame, of a frame detachably mounted upon the Aplaten frame and having a' tablet erected over the platen above the printing point, a stop to gage the leading edge of the sheet, said' tablet and stop'being adjustable upon said detachable .frame'ajvay from and to- .,xvardthe printing line, means lto hold the stop in working position, mea-ns' operable by a part of the paper-advancing mechanism to release `the stop, the platen having a notched wheel and the detachable frame having a tumbler to drop into the notch of the wheel, to enable the rotation thereof'to throw the stop to release' the sheet, and means to permit adjustmentr of the stop-releasing means to compensate vfor the adjustmentI of the tablet. 4

nation of a platen, a feed roller, key controlled releasing means for the feed roller, paperstop devices, and a ke'y for controlling said devices, said key being arranged in proximity to the release key and being opf erative by the same hand that 'operates thel release key and concurrentlyftherewith.

natio-n of a platen, a paper stop, paper controlling deviees, means for locking said devices in abnormal position, and lseparate means for locking said,l paper stopin abnormal position.

53. In a typewriting machine`the combination of a platen, a normally operative' feed roller, a normally inoperative paper sto means for releasing said feed rollerho d the stop in working position, and

an locking it in released position, and sepajustment of the A 50. In a typewriting machine, the corbi-` nation with a revoluble platen and a platen 52. In a typewriting machine, the combi-V means operable b'ya part oflthe paper-ada thereof to throw the stop to release the sheet.

nism to release the stop, and means to per- 51. In a typewriting machine; the combi- `platen frame, a stop-gage-on said trame ber to effective position, and means set by forthe leaa'lingg,l edge of the sheet, and means to cause the rateh'et to release the stop-gage. 55. In a typeivriting machine, the combi lnation with a rotatable platen, ot an alinin'g member' for a sheet passing around said platen, a finger-piece for moving said memsaid inger] )iece for causing any rotation of the platen to move said memberI to inetteetive position.

56.*ln a typewriting machine, the combi*n .nation- Vith ar rotatable platen and a tablet above the platen Aon vwhich to adjnst a sheet, ot' an alining' member cooperatingwith said tablet to gage, the end of a sheet, artingerpiece for moving` said member to effective -position, land means set by said linger-piece 'to canse any rotation of the platenl to move Asaidv member to lnetleetive position.

57.` In a` typewriting machine, the combi- V-nation with a rotatable platen and a frame v'1n vwhich said platen is mounted, o'l side plates adjustably mounted on said trame, a paperV adjusting;` tablet carried'by saidside platesr an alining 1r membercarried by said side plates, and a device carried by said side plates -for causing any rotation ot the platen to autoimitically move said member to' 1neiteetive position.-

58. In a typeii'iritingmachine, the combination ivith a rotatable platen and frame on which it isinounted, ot side plateseach secured to said frame by a thumb screw, an alinine member. carried by said side plates, and a device carried by said side plates tor causing any rotation of the platen tomove said member to ineffective position.

ln af front strike typewriting machine, the combination with a rotatable platen and a tablet above the printing pointof said platen, ot alining members cooperating with said tablet to aline a sheet thereon, means for moving said members to inelleetive lpo-4 sitions by rotation oit the platen, and manual ineans for 4moving said members to effective and ineffective positions irrespective ot the rotation ot said platen.

GO. In a typeivriting machine, the combination of a rotatable platen, a paper alining member, a paper eontrollinn' device` means for locking` said device in abnormal position, separate means tor locking said paper alii'1in;"(levice in aln'iormal position, and a cimnection for positively moving said alining member to normal position by rotation of the platen.

Gl. ln a tylanvriting machine, the combination "ot' a rotatable platen, a 1'1ormally-op erative feed roller, a normally inoperative paper alining member, means for releasing' said 'feed roller and locking it in said releasing position, separate means tor movingl said' alining member into operative. position and locking it there, and means for pesitively returning' said, alining member to inoperative position by rotation ot said platen.-

HARRY S. MoC(f)Rl\/IAGK.

litnessesz K. FMLN Krou'r, donn O.v Snlrnn'r. 

